机械夹具

1、机械加工工艺装备,天马行空官方博客： ；QQ:1318241189；QQ群：175569632,机械加工工艺装备,1.1 机床 1.2 刀具 1.3 夹具,天马行空官方博客： ；QQ:1318241189；QQ群：175569632,夹具,1.3,1.3.1 机床夹具概述 1.3.2 工件的定位 1.3.3 工件的夹紧 1.3.4 典型夹具,1.3 夹具,1.3.1 机床夹具概述,夹紧：是指工件定。

2、第一节 车床夹具设计实例,一、明确设计任务,设计 “涡轮箱体”零件工艺流程中第8道工序的车床专用夹具。,二、定位方案及定位元件,1确定定位方案,2选择定位元件,选择角铁（角铁支承面消除工件3个不定度）、两个支承钉（消除工件2个不定度）和削边心轴（消除工件1个不定度。,三、夹紧方案及夹紧装置的设计,1夹紧力方向的确定,2夹紧力作用点确定,3夹紧力大小,夹紧方案示意图,四、夹具结构的设计,1定位装置。

3、第七节 机械加工夹具设计与应用,一、概 述,为了加工出符合规定技术要求的表面，必须在加工前将工件装夹在机床上。,1. 工件的装夹,实现工件的定位与夹紧,安装：工件从定位到夹紧的全过程称为。 安装工件时，一般是先定位后夹紧，而在三爪卡盘上安装工件时，定位与夹紧是同时进行的,夹紧：工件定位后将其固定，使其在加工过程中不致因切削力、重力和惯性力的作用而偏离正确的位置保持定位位置不变的操作。,定位：使工件。

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